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3 years ago

Answer with A B C D. Correct answer gets brainlest.

Mathematics

1 answer:

Zina [86]3 years ago

6 0

Answer:

Step-by-step explanation:

8 x 8 x 8 =512

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A rectangle with sides 12 cm and 14 cm has the same diagonal as a square.

adelina 88 [10]

Answer:

Length of side of square $=\sqrt{170}$

Step-by-step explanation:

Sides of rectangle $=12,14\ cm$

let $x$ be diagonal of rectangle

Pythagorean theorem : The square of hypotenuse is equal to sum of square of sides.

Here hypotenuse $=x$

$x^{2} =12^{2}+14^{2}\\x^{2} =144+196\\x^{2} =340\\x=\sqrt{340}$

Diagonal of square $=\sqrt{340}$

let side of square $=a$

again use pythagorean theorem

$340=a^{2}+a^{a}\\2a^{2}=340\\a^{2}=170\\a=\sqrt{170}$

8 0

3 years ago

Find the zeros of the following please solve step by step 1. x³+9x²+26x+24=0

Vlad1618 [11]

Answer: -4, -3, -2

Step-by-step explanation:

By inspection, we know $x=-2$ is a root.

We can thus rewrite the equation as

$(x+2)\left(\frac{x^3 + 9x^2 + 26x+24}{x+2} \right)=0\\\\(x+2)(x^2 + 7x+12)=0\\\\(x+2)(x+3)(x+4)=0\\\\x=-4, -3, -2$

3 0

2 years ago

Can someone plz help

siniylev [52]

Step-by-step explanation:

A list of all possible outcomes in a given event is:

Sample space

8 0

3 years ago

State the reference angle for -75

boyakko [2]

Check the picture below.

so, the reference angle, will be the angle made by it with the x-axis, namely 75°.

8 0

4 years ago

F is inversely proportional to d^2. When F=9, d=4 Work out d (positive value rounded to 2 DP) when F=6

Sever21 [200]

Answer:

d = 4.90

Step-by-step explanation:

Given the following data;

F = 9

d = 4

For an inversely proportional relationship, we have;

F = k/d²

Now, we would find the constant, k;

9 = k/4²

k = 9*16

k = 144

Next, to find d, when F = 6

d² = k/F

d² = 144/6

d² = 24

Taking the square root of both sides, we have;

d = 4.90

7 0

3 years ago